Version: (using KDE 4.2.2)
Installed from: SuSE RPMs
If you click on a mounted removeable media, e.g. a usb-stick, solphin shows its content. If you right-click on the item in the places pane after that and "remove safely", the content is not shown anymore. Left-clicking on the removeable media item mounts it again, yet the content is not shown until one changes to another item in the places pane and back.
Thanks for the bug report! This issue is known already.
*** This bug has been marked as a duplicate of bug 161385 ***